Avg unable to reinstall

My avg says that "it is unable to complete setup" I attempted to reinstall it, but failed, please help!

I found some things at: This pc / MIDGARD:(C) / Windows / Temp 

it was some avg files, some were outdated

as well as that, I got the santivirus virus, so this may affect things
I already downloaded avg clear, but to no avail.

Can anyone help me??

Hello Theo.
We regret the inconvenience caused.
Could you let us know which AVG product are you trying to install? Is it a free or paid version?